Guide values for heart rate and blood pressure with reference to 20, 40, 60 und 80% of maximum exertion considering age, sex and body mass in non-trained individuals.
Strasser B, Schwarz J, Haber P, Schobersberger W. Guide values for heart rate and blood pressure with reference to 20, 40, 60 und 80% of maximum exertion considering age, sex and body mass in non-trained individuals. Wien Med Wochenschr 2011; 161: 550-556